CN103538211A

CN103538211A - Mechanism capable of pulling core in two directions in once die opening

Info

Publication number: CN103538211A
Application number: CN201310424366.7A
Authority: CN
Inventors: 范静东; 范伟
Original assignee: NINGBO TIANLONG ELECTRONICS CO Ltd
Current assignee: NINGBO TIANLONG ELECTRONICS CO Ltd
Priority date: 2013-09-17
Filing date: 2013-09-17
Publication date: 2014-01-29
Anticipated expiration: 2033-09-17
Also published as: CN103538211B

Abstract

The invention discloses a mechanism capable of pulling a core in two directions in once die opening. The mechanism comprises a fixed die fixing plate, a fixed die plate with a fixed die core, a movable die plate with a movable die core, and a sliding block arranged on the movable die plate in a slideable manner, wherein a first forming insert used for forming a side characteristic hole is arranged on the sliding block, a resin closure is arranged between the fixed die plate and the movable die plate; a fixed die die core insert is connected with the fixed die core; the movable die core, the fixed die core, the fixed die die core insert and the sliding block are defined into a plastics part cavity for injection molding, a locking block for locking the sliding block in a die closing state is fixedly arranged on the fixed die plate; the fixed die fixing plate is fixedly connected with the fixed die plate; the fixed die die core insert is fixedly connected with a second forming insert for forming a vertical characteristic circular hole; a guide hole for guiding the side movement of the sliding block in a die opening state is fixedly formed in the fixed die plate, a bent pin is inserted in the guide hole; the bent pin is fixedly connected to the fixed die plate, and sequentially comprises a linear section and a diagonal section along the direction of pulling away from the guide hole, and the diagonal section pushes the outer side wall surface of the guide hole when being pulled away from the guide hole so that the sliding block is pushed to complete the side die pulling action.

Description

A die sinking both direction core-pulling mechanism

Technical field

The present invention relates to a kind of core-pulling die mechanism.

Technical background

In actual production, often run into some and there is the vertically product with horizontal plastic feature holes to plastic feature holes simultaneously, as shown in Figure 1 and Figure 2.When the particularity of this product is the active and inactive mold demoulding and the side core-pulling demoulding be interference state, as shown in Fig. 2-1, cause when producing this product, need to realize in two steps the active and inactive mold demoulding and the side core-pulling demoulding.

Shown in die structure dwg Fig. 3-Fig. 6 of this kind of product of existing production.Label in figure is as follows: 01 is cover half die, and 02 is cover half die mold insert, and 03 is circular hole moulding mold insert, 04 is slide block, 05 is dynamic model die, and 06 for needing the product of injection moulding, and 07 is die sinking spring, 08 is limited screw, 09 is resin shutter, and 10 is Angle Pin, and A01 is cover half fixed head, A02 is solid plate, and A03 is moving platen.

Circular hole moulding mold insert 03 is fixed in cover half fixed plate A 01 by pressing plate.

Die sinking is for the first time between cover half fixed plate A 01 and solid plate A02, and the circular hole moulding mold insert 03 being fixed on after die sinking in cover half fixed plate A 01 departs from product, departs from slide block.Between circular hole moulding mold insert 03 and slide block, do not exist after interference, start die sinking for the second time, die sinking is for the second time between A02 and A03, and slide block completes the side core-pulling of product according to normal run action.

This structure mold in process of production running can find out from Fig. 3, Fig. 4, Fig. 5, Fig. 6, and mould must pass through twice die sinking, by certain die sinking order.Just can complete the action of loosing core of both direction, mold actions is complicated.

Summary of the invention

For overcoming the above-mentioned shortcoming of prior art, the invention provides a kind of mould structure simple, a die sinking both direction core-pulling mechanism of long service life.

A die sinking both direction core-pulling mechanism, comprise cover half fixed plate A 01, have fixed mold core 1 solid plate A02, there is the moving platen A03 of mavable module core 5 and be slidably mounted on the slide block 4 on moving platen A03, slide block 4 is provided with the first moulding mold insert 41 for moulding side direction feature holes, between described solid plate A02 and moving platen A03, is provided with resin shutter; On fixed mold core 1, be connected with cover half die mold insert 2;

Mavable module core 5, fixed mold core 2, cover half die mold insert 2 and slide block 4 enclose injection molding plastic die cavity, are fixed with the latch segment of locking sliding block when matched moulds state on solid plate;

It is characterized in that: cover half fixed plate A 01 is fixedly connected with solid plate A02; Described cover half die mold insert 2 is connected with the second moulding mold insert 3 of vertically using to feature circular hole for moulding;

On described slide block 4, have the pilot hole of the lateral movement of guide runner when die sinking, in described pilot hole, insert curved pin 11; It is upper that described curved pin 11 is fixed in solid plate A02, curved pin 11 along detach pilot hole direction be straightway and oblique line section successively, described oblique line section promotes the outer side surface of pilot hole when detaching pilot hole, makes to promote slide block 4 and completes the action of side direction pumping mode.

Further, the process of loosing core of corresponding the second moulding mold insert 3 of the straightway of curved pin 11 when the demoulding; Described pilot hole is from bottom to top introversion shape gradually, and the bottom of the interior sidewall surface of pilot hole is linearly.

Technical conceive of the present invention is: during matched moulds state, and the existence of the first moulding mold insert, the second moulding mold insert, during injection moulding, plastics liquation can not enter in mold insert and form vertically to feature holes and side direction feature holes.

During die sinking, slipper block loose core power derives from curved pin, at the straightway of curved pin of die sinking initial stage, can not promote slide block sidesway, and now the second moulding mold insert 3 completes and looses core; When the second moulding mold insert 3 no longer forms interference to side core-pulling, the oblique line section of curved pin promotes slide block sidesway.Thus, slide block relies on time delay to force emptying aperture to complete time delay in the stage of loosing core to loose core; In the matched moulds stage, rely on vertical contact-segment to complete time delay matched moulds simultaneously.Time delay loose core and the process of time delay matched moulds in, the second moulding mold insert has completed extraction and process of press in, avoided vertically loosing core and side core-pulling between interference problem, thereby reach the object of simplifying mould structure.

It is simple that the present invention has mould structure, the advantage of long service life.

Accompanying drawing explanation

Fig. 1 is the outline drawing of prior art mould.

Fig. 2 is the longitudinal sectional view of mould shown in Fig. 1.

Fig. 2 a is the partial enlarged drawing of Fig. 2.

Fig. 3 is the schematic diagram of the matched moulds state of prior art mould.

Fig. 4 is the partial enlarged drawing of Fig. 3.

Fig. 5 is the schematic diagram of the die opening state of prior art mould.

Fig. 6 is the partial enlarged drawing of Fig. 5.

Fig. 7 is the present invention's schematic diagram in matched moulds state before injection moulding.

Fig. 8 is the C portion enlarged drawing of Fig. 7.

Fig. 9 is the schematic diagram of die sinking injection moulding state of the present invention.

Figure 10 a is the D portion enlarged drawing of Fig. 9.

Figure 10 b is the E portion enlarged drawing of Fig. 9.

Figure 11 is schematic diagram when die sinking finishes after injection moulding of the present invention.

Figure 12 a is the F portion enlarged drawing of Figure 11.

Figure 12 b is the G portion enlarged drawing of Figure 11.

The specific embodiment

With reference to accompanying drawing 7-12G, further illustrate the present invention:

Content described in this description embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also and in those skilled in the art, according to the present invention, conceive the equivalent technologies means that can expect.

Claims

1. a die sinking both direction core-pulling mechanism, comprise cover half fixed head (A01), have fixed mold core 1 solid plate (A02), there is the moving platen (A03) of mavable module core (5) and be slidably mounted on the slide block (4) on moving platen (A03), slide block (4) is provided with the first moulding mold insert (41) for moulding side direction feature holes, between described solid plate (A02) and moving platen (A03), is provided with resin shutter; On fixed mold core (1), be connected with cover half die mold insert (2);

Mavable module core (5), fixed mold core (2), cover half die mold insert (2) and slide block (4) enclose injection molding plastic die cavity, are fixed with the latch segment of locking sliding block when matched moulds state on solid plate;

It is characterized in that: cover half fixed head (A01) is fixedly connected with solid plate (A02); Described cover half die mold insert (2) is connected with the second moulding mold insert (3) of vertically using to feature circular hole for moulding;

On described slide block (4), have the pilot hole of the lateral movement of guide runner when die sinking, in described pilot hole, insert curved pin (11); Described curved pin (11) is fixed on solid plate (A02), curved pin (11) along detach pilot hole direction be straightway and oblique line section successively, described oblique line section promotes the outer side surface of pilot hole when detaching pilot hole, makes to promote slide block (4) and completes the action of side direction pumping mode.

2. core-pulling mechanism as claimed in claim 1, is characterized in that: the process of loosing core of corresponding the second moulding mold insert (3) of the straightway of curved pin (11) when the demoulding; Described pilot hole is from bottom to top introversion shape gradually, and the bottom of the interior sidewall surface of pilot hole is linearly.